摘要:
A power hand tool (10) has a body (100) and an electric motor with gears for driving a tool implement to act upon a workpiece in an operative direction, including a handle (200) for gripping by the hand of a user. The handle (200) has a portion (220) facing in a non-operative direction opposite to the operative direction. The handle portion (220) is resiliently deferrable to absorb and thus reduce reaction shock acting upon the palm of the user's hand during operation of the tool (10). The portion (220) is part of a detachable cover (210) that is fixed on the handle (200) by a latching device (300). The latching device (300) includes a release member (320) that is manually operable without the use of a specific tool to release the latching device (300) and in turn the cover (210).
摘要:
An electric cutting tool (10) has a body (100), a chuck (300) for attaching a saw blade (20) having a rear end (22) including a hole (24), and a drive mechanism (200). The chuck (300) has a gap (312) for receiving the rear saw end (22), an internal multi-part fixing means (340) for engaging the hole (24) of the saw end (22) in the gap (312), and an outer cylinder (330) having an inner cam surface (332) for acting upon the fixing means (340). The cylinder (330) is manually rotatable between a locked position in which the cam surface (332) presses the fixing means (340) tight against the saw hole (24) in the gap (312) to fix the saw blade (20) and an unlocked position releasing the fixing means (340). The fixing means (340) is provided by two balls (342 & 344).
摘要:
A lighting device (50) comprises a light source (40) e.g. LED, a convex reflector (43) for receiving light from the LED (40), and a concave reflector (41) for receiving light from the convex reflector (43). A relatively narrow angled light beam from the LED (40) is diverged by the convex reflector (43) and then converged by the concave reflector (41) into a relatively broader parallel light beam. The two reflectors (43 & 41) may be replaced by plano-concave and convex lens (143 & 141) respectively.
摘要:
A laser level device (10) includes a cold formed metallic mounting plate (15), a spirit level tube (16/17) fixed against the mounting plate (15), and a laser emitter (22) fixed against the mounting plate (15).
摘要:
A Power hand tool (10) has a body (100) and an electric motor (200) therein for driving a clean/polishing implement. A capsule (410) encloses the motor (200) for protection against intrusion of liquid, which includes a thermally conductive end cap (430) that is exposed to the exterior outside the body (100). A thermal conductor e.g. aluminum bracket (240) in contact with a metal casing (211/212) of the motor (200) and the end cap (430) conducts heat from the motor (200) to the end cap (430) for heat dissipation.
摘要:
Disclosed is a holder (100) for holding a tool implement (90) for use with a power tool (10) having a drive output member (40). The holder (100) comprises a pair of first and second supports (111/112) for connection to the output member (40), a clamp member (121/122) located between the supports (111/112), and a cam (130) supported between the first support (111) and the clamp member (121). The cam (130) can be turned between an operative position urging the clamp member (121) towards the second support (112) to hold the implement (90) and an inoperative position releasing the clamp member (121) to permit removal of the implement (90).
摘要:
A lighting device (50) comprises a light source (40) e.g. LED, a convex reflector (43) for receiving light from the LED (40), and a concave reflector (41) for receiving light from the convex reflector (43). A relatively narrow angled light beam from the LED (40) is diverged by the convex reflector (43) and then converged by the concave reflector (41) into a relatively broader parallel light beam. The two reflectors (43 & 41) may be replaced by plano-concave and convex lens (143 & 141) respectively.
摘要:
A power tool (20) having a body (21), a tool bit holder (10) protruding from the tool body (21) for holding and rotating a tool bit about an axis of rotation, and an operator (100) for operating the bit holder (10). The operator (100) comprises an annular member (110) rotationally engageable with the bit holder (10) for manual turning to tighten and/or release the bit holder (10), and a mount (130) mounting the annular member (110) to the tool body (21) for movement between a non-operative position rotationally disengaged from the bit holder (10) and an operative position rotationally engaged with the bit holder (10).
摘要:
A laser level device (10) includes a cold formed metallic mounting plate (15), a spirit level tube (16/17) fixed against the mounting plate (15), and a laser emitter (22) fixed against the mounting plate (15).
摘要:
A battery operated device has a body (11) housing an electric motor (10), a battery pack (12) slidably secured to the body (11) for powering the electric motor (10) including a shunting surface (21), a latching surface (26) and a release member (19). A release button (13) is mounted to the body and has a first surface (23) engageable with the release member (19) to effect movement of the release member (19) away from the latching surface (26) upon depression of the release button (13), and a second surface (22) engageable with the shunting member (21) upon depression of the release button (13) to effect movement of the battery pack (12) in a release direction.